EP0722705B1 - Cotton buds sticks of plastic material - Google Patents
Cotton buds sticks of plastic material Download PDFInfo
- Publication number
- EP0722705B1 EP0722705B1 EP95116392A EP95116392A EP0722705B1 EP 0722705 B1 EP0722705 B1 EP 0722705B1 EP 95116392 A EP95116392 A EP 95116392A EP 95116392 A EP95116392 A EP 95116392A EP 0722705 B1 EP0722705 B1 EP 0722705B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sticks according
- water
- sticks
- natural
- stick
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229920000742 Cotton Polymers 0.000 title claims description 13
- 239000000463 material Substances 0.000 title claims description 6
- 229920003023 plastic Polymers 0.000 title description 3
- 239000004033 plastic Substances 0.000 title description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 48
- 239000000047 product Substances 0.000 claims description 21
- 229920002472 Starch Polymers 0.000 claims description 18
- 239000008107 starch Substances 0.000 claims description 17
- 235000019698 starch Nutrition 0.000 claims description 17
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 15
- 239000005445 natural material Substances 0.000 claims description 11
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 10
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 9
- 239000004014 plasticizer Substances 0.000 claims description 9
- 235000019422 polyvinyl alcohol Nutrition 0.000 claims description 9
- 229920001169 thermoplastic Polymers 0.000 claims description 9
- 239000004416 thermosoftening plastic Substances 0.000 claims description 9
- 229920001059 synthetic polymer Polymers 0.000 claims description 8
- 229920005862 polyol Polymers 0.000 claims description 6
- 150000003077 polyols Chemical group 0.000 claims description 6
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 5
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims description 5
- 230000007062 hydrolysis Effects 0.000 claims description 5
- 238000006460 hydrolysis reaction Methods 0.000 claims description 5
- 238000001746 injection moulding Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 239000000600 sorbitol Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims description 4
- 108010010803 Gelatin Proteins 0.000 claims description 4
- 239000004373 Pullulan Substances 0.000 claims description 4
- 229920001218 Pullulan Polymers 0.000 claims description 4
- 239000004715 ethylene vinyl alcohol Substances 0.000 claims description 4
- 229920000159 gelatin Polymers 0.000 claims description 4
- 239000008273 gelatin Substances 0.000 claims description 4
- 235000019322 gelatine Nutrition 0.000 claims description 4
- 235000011852 gelatine desserts Nutrition 0.000 claims description 4
- 239000000314 lubricant Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 229920001610 polycaprolactone Polymers 0.000 claims description 4
- 239000004632 polycaprolactone Substances 0.000 claims description 4
- -1 polyester-urethanes Polymers 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- 235000019423 pullulan Nutrition 0.000 claims description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 3
- 229920002396 Polyurea Polymers 0.000 claims description 3
- 230000002745 absorbent Effects 0.000 claims description 3
- 239000002250 absorbent Substances 0.000 claims description 3
- 229920003232 aliphatic polyester Polymers 0.000 claims description 3
- 229920002301 cellulose acetate Chemical class 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 2
- 229920002126 Acrylic acid copolymer Polymers 0.000 claims description 2
- 229920001661 Chitosan Polymers 0.000 claims description 2
- 229920000615 alginic acid Polymers 0.000 claims description 2
- 235000010443 alginic acid Nutrition 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- 239000007795 chemical reaction product Substances 0.000 claims description 2
- 238000010411 cooking Methods 0.000 claims description 2
- 150000002170 ethers Chemical class 0.000 claims description 2
- 239000000945 filler Substances 0.000 claims description 2
- RZXDTJIXPSCHCI-UHFFFAOYSA-N hexa-1,5-diene-2,5-diol Chemical class OC(=C)CCC(O)=C RZXDTJIXPSCHCI-UHFFFAOYSA-N 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims description 2
- 239000000025 natural resin Substances 0.000 claims description 2
- 229920001200 poly(ethylene-vinyl acetate) Chemical class 0.000 claims description 2
- 239000011118 polyvinyl acetate Substances 0.000 claims description 2
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 2
- 108090000623 proteins and genes Proteins 0.000 claims description 2
- 102000004169 proteins and genes Human genes 0.000 claims description 2
- 230000000306 recurrent effect Effects 0.000 claims description 2
- 239000012815 thermoplastic material Substances 0.000 claims description 2
- 235000013311 vegetables Nutrition 0.000 claims description 2
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims 3
- 239000004721 Polyphenylene oxide Substances 0.000 claims 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Substances OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims 2
- 229920000570 polyether Polymers 0.000 claims 2
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 claims 1
- 239000004970 Chain extender Substances 0.000 claims 1
- 150000001242 acetic acid derivatives Chemical class 0.000 claims 1
- 229940072056 alginate Drugs 0.000 claims 1
- 125000001931 aliphatic group Chemical group 0.000 claims 1
- 150000001412 amines Chemical class 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 150000002485 inorganic esters Chemical class 0.000 claims 1
- 150000002895 organic esters Chemical class 0.000 claims 1
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 108010064470 polyaspartate Proteins 0.000 claims 1
- 150000003568 thioethers Chemical class 0.000 claims 1
- KMZHZAAOEWVPSE-UHFFFAOYSA-N 2,3-dihydroxypropyl acetate Chemical compound CC(=O)OCC(O)CO KMZHZAAOEWVPSE-UHFFFAOYSA-N 0.000 description 4
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 229920002494 Zein Polymers 0.000 description 3
- 238000006065 biodegradation reaction Methods 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 3
- 239000005019 zein Substances 0.000 description 3
- 229940093612 zein Drugs 0.000 description 3
- LDVVTQMJQSCDMK-UHFFFAOYSA-N 1,3-dihydroxypropan-2-yl formate Chemical compound OCC(CO)OC=O LDVVTQMJQSCDMK-UHFFFAOYSA-N 0.000 description 2
- RZRNAYUHWVFMIP-KTKRTIGZSA-N 1-oleoylglycerol Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCC(O)CO RZRNAYUHWVFMIP-KTKRTIGZSA-N 0.000 description 2
- 229920000856 Amylose Polymers 0.000 description 2
- 229920003043 Cellulose fiber Polymers 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- MKRNVBXERAPZOP-UHFFFAOYSA-N Starch acetate Chemical compound O1C(CO)C(OC)C(O)C(O)C1OCC1C(OC2C(C(O)C(OC)C(CO)O2)OC(C)=O)C(O)C(O)C(OC2C(OC(C)C(O)C2O)CO)O1 MKRNVBXERAPZOP-UHFFFAOYSA-N 0.000 description 2
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 2
- 239000008116 calcium stearate Substances 0.000 description 2
- 235000013539 calcium stearate Nutrition 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 description 2
- RZRNAYUHWVFMIP-HXUWFJFHSA-N glycerol monolinoleate Natural products CCCCCCCCC=CCCCCCCCC(=O)OC[C@H](O)CO RZRNAYUHWVFMIP-HXUWFJFHSA-N 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- GOQYKNQRPGWPLP-UHFFFAOYSA-N n-heptadecyl alcohol Natural products CCCCCCCCCCCCCCCCCO GOQYKNQRPGWPLP-UHFFFAOYSA-N 0.000 description 2
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 description 2
- 239000001814 pectin Substances 0.000 description 2
- 229920001277 pectin Polymers 0.000 description 2
- 235000010987 pectin Nutrition 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- 235000016068 Berberis vulgaris Nutrition 0.000 description 1
- 241000335053 Beta vulgaris Species 0.000 description 1
- DPUOLQHDNGRHBS-UHFFFAOYSA-N Brassidinsaeure Natural products CCCCCCCCC=CCCCCCCCCCCCC(O)=O DPUOLQHDNGRHBS-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- URXZXNYJPAJJOQ-UHFFFAOYSA-N Erucic acid Natural products CCCCCCC=CCCCCCCCCCCCC(O)=O URXZXNYJPAJJOQ-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 108010068370 Glutens Proteins 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 235000021314 Palmitic acid Nutrition 0.000 description 1
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 1
- 229920001800 Shellac Polymers 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 108010073771 Soybean Proteins Proteins 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 108010055615 Zein Proteins 0.000 description 1
- RSWGJHLUYNHPMX-ONCXSQPRSA-N abietic acid Chemical compound C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C(O)=O RSWGJHLUYNHPMX-ONCXSQPRSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 229920006187 aquazol Polymers 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- DPUOLQHDNGRHBS-KTKRTIGZSA-N erucic acid Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(O)=O DPUOLQHDNGRHBS-KTKRTIGZSA-N 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 235000021312 gluten Nutrition 0.000 description 1
- 239000010903 husk Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 235000021313 oleic acid Nutrition 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 235000018102 proteins Nutrition 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 239000013558 reference substance Substances 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- ZLGIYFNHBLSMPS-ATJNOEHPSA-N shellac Chemical compound OCCCCCC(O)C(O)CCCCCCCC(O)=O.C1C23[C@H](C(O)=O)CCC2[C@](C)(CO)[C@@H]1C(C(O)=O)=C[C@@H]3O ZLGIYFNHBLSMPS-ATJNOEHPSA-N 0.000 description 1
- 239000004208 shellac Substances 0.000 description 1
- 229940113147 shellac Drugs 0.000 description 1
- 235000013874 shellac Nutrition 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 229940001941 soy protein Drugs 0.000 description 1
- 229940037312 stearamide Drugs 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- SKIVFJLNDNKQPD-UHFFFAOYSA-N sulfacetamide Chemical compound CC(=O)NS(=O)(=O)C1=CC=C(N)C=C1 SKIVFJLNDNKQPD-UHFFFAOYSA-N 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 150000003626 triacylglycerols Chemical class 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 229940100445 wheat starch Drugs 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F11/00—Methods or devices for treatment of the ears or hearing sense; Non-electric hearing aids; Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense; Protective devices for the ears, carried on the body or in the hand
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/38—Swabs having a stick-type handle, e.g. cotton tips
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
Definitions
- the present invention relates to sticks with cotton buds suitable for hygienic and cosmetic use, in particular for ears hygiene, disintegrable in water and undergoing rapid biodegradation, obtained from natural substances of polymeric nature rendered thermoplastic or from synthetic polymers.
- plastic sticks are obtained by means of an extrusion technology according to which small tubes of approximately 2.5-3 mm of diameter are extruded at extrusion rates of 50-100 m/minute.
- the resulting productivity is of approximately 700-1300 sticks per minute.
- the extruded tube is then calibrated by causing it to run first through a duct, after being sprayed with water, and then through a water bath, before being cut.
- water disintegrable and rapidly biodegradable cotton bud sticks can be prepared by injection moulding starting from natural polymeric substances which, when converted into the thermoplastic state, are water soluble or capable of getting dispersed in water and undergoing rapid biodegradation or from synthetic polymers water soluble or capable of getting dispersed in water and undergoing rapid biodegradation.
- Examples of natural substances usable for preparing the sticks comprise:
- starch is the preferred starting substances.
- Starch can be used in mixture with the natural substances indicated above, in particular with gelatin from animal origin, zein, pullulan, pectin.
- Starch or the other natural substances, can be mixed with a synthetic polymer which can be compatible or not with starch, such as polyvinyl alcohol, polyvinyl acetate with different hydrolysis degree, polyoxyalkylenes, or insoluble synthetic polymers, such as ethylene-vinyl alcohol, ethylene-vinyl acetate, ethylene-acrylic esters, or acrylic acid copolymers, thermoplastic polyesters, preferably aliphatic polyesters such as polycaprolactone polyester-polyurethanes, polyester-polyurethane-polyurea copolymers, lactic acid polymers and copolymers, cellulose acetate, starch esters with substitution degree from 0.1 to 2, possibly in the presence of their specific plasticizers. Polymers of this types are disclosed in Italian patent application with filing No. MI94A000228, the disclosure of which is incorporated hereto by reference.
- These polymers are added in amounts lower than about 30% by weight, preferably up to about 20% by weight.
- thermoplastic materials are carried out in heated extruders (extrusion-cooking), or in any devices which may secure temperature and shear stress conditions which are the proper ones to cause the material to become thermoplastic, by operating in the presence of water and/or a plasticizer, at a temperature comprised within the range from 80°C to 210°C.
- the total amount of water and plasticizer is lower than 25% by weight with respect to the natural fraction.
- the usable plasticizer comprise, besides water, polyols with 1-20 recurrent hydroxylated units each containing from 2 to 6 carbon atoms, which may also be partially substituted.
- plasticizer are glycerol, glycerol acetate, polyethylene and polypropylene glycol, sorbitol, sorbitol acetate, ethoxylated sorbitol, citric acid.
- the usable lubricants are based on fatty chains such as oleic acid, stearic acid, palmitic acid, erucic acid, also converted into esters, amides, salts and ethers, in the case of reaction with alkaline oxides.
- Suitable lubricants comprise steramide, stearyl alcohol, calcium stereate, mono- di- and triglycerides or oleates of polyols also containing alkylenoxide units.
- Fillers of vegetable origin can be added such as (cellulose fibres, dried beet flesh, yeast shells, wood, rice husk) or of mineral origin such as talk, silica, silicates, carbonates.
- foaming agents can be added which rendering microfoamed the end product.
- the stick shapes are tailored to the moulding process in order to obtain high productivity values.
- Solid forms, tubular forms with tapered bore to allow the sticks to be de-moulded, polygonal forms, lobed-cross-section forms, can be used and in general any form compatible with the injection moulding process.
- the mouldability of the material is preferably selected to allow production cycles shorter than 15 seconds and preferably than 10 seconds.
- the injection moulding can be carried out with riser, sprue, hot-channel, hot-chamber systems, or still other moulding systems.
- the application of the cotton buds on both stick ends is carried out according to well-known methods, by treating, e.g., the ends of sticks either with adhesives, or mechanically, and/or with water in order to cause the cotton-wool to be retained.
- the absorbent buds wound around one or both stick ends are preferably formed by cotton-wool.
- Other non-woven natural fibres can be used, such as rayon fibres, possibly in mixture with minor proportion of synthetic fibres.
- Cotton can be bleached or unbleached.
- the sticks for aural hygiene generally have a cylindrical form, 7-10 cm long, with a diameter of 2-3 mm.
- the product was vented in order to reduce its water content to 12%.
- the obtained pellets were fed to a 60 ton Sandretto injection press.
- the used mould was a sprue mould with 20 cavities and two extractors for each cavity at the height of 1/4 and 3/4 of each cavity.
- the hollows were solid cylinders of 7.35 cm of length and 2.5 mm of diameter, with rounded ends.
- the mould was water cooled.
- the temperature profile used was flat and set at 165°C.
- the moulding cycle was of 9 seconds.
- the resulting pieces were provided with cotton buds by using the conventional cotton-wool application system with mechanical erosion of stick ends in order to improve the cotton adhesion.
- Example 2 The preparation was carried out as in Example 1, with the difference that 3% of PVOH was replaced EVOH (ethylene/vinyl alcohol copolymer) containing 44% of ethylene by mole and having a hydrolysis degree higher than 99.8%.
- EVOH ethylene/vinyl alcohol copolymer
- Example 2 The process is carried out as in Example 1, with the difference that 5% of PVOH is replaced by EVOH. The resulting product was still disintegrating in water in a time of approximately 3 hours.
- Example 2 The preparation is carried out as in Example 1, with the difference that 5% of starch is replaced by 5% of Estane 54351 (Goodrich), a copolymer constituted by low molecular weight polycaprolactone segments bonded by urethane linkages.
- Estane 54351 Goodrich
- the product resulted to be still disintegrable in water.
- Example 2 The run was carried as in Example 1, with the difference that a formulation is used which contains 85 parts of starch, 5 parts of Estane 54351, 9.6 parts of water, 0.1 parts of monoglyceride and 0.4 parts of stearamide.
- the product was disintegrable in water and biodegradable according to Sturm test in 5 days.
- Example 2 The run is carried out as in Example 1, with the difference that 40 parts of starch were replaced by zein.
- the resulting product showed a good disintegrability in water.
- Example 2 The preparation is carried out as in Example 1, with the difference that 40 parts of starch were replaced with animal gelatin. The product proved to be disintegrable in water within the times observed for the products of the other examples.
- Example 1 The run is carried out as in Example 1, but with starch being completely replaced by pullulan. The resulting product is even more easily dispersible in water than the product of Example 1.
- Example 1 80 parts of wheat starch SF 20006 ex Cerestar, 3 parts of starch acetate with a substitution degree of 1.5, 5 parts of cellulose acetate, 1.5 parts of glycerol monoacetate, 9.5 parts of water, 0.1 part of monoglyceride and 0.3 part of stearyl alcohol are treated as in Example 1. The so obtained product results to be dispersible.
- Example 2 The run is carried out as in Example 1, with the difference that 5 parts of water are replaced by glycerol. By venting, the water content was reduced to 7%. The product resulted to be very flexible and with extremely good water dispersibility.
- the run is carried out as in Example 10, with 5% of PVOH being replaced by Union Carbide 787 polycaprolactone.
- the product resulted to be mouldable and water dispersible.
- the product resulted to be mouldable with a 12-second cycle and proved to be disintegrable in water within less than 2 hours.
- Example 2 The run is carried out as in Example 1, with the difference that 10 parts of cellulose fibres and 5 parts of glycerol are added. After extrusion, the product contained about 8% of water. The mouldability was good, even if it was worst than non-filled products. Water disintegrability was good.
- Example 2 The product from Example 1 was moulded on a pilot single cavity mould characterized by a 7.3 cm long cavity of tubular shape with an outer diameter of 2.7 mm and an inner diameter which was of 1 mm at an end and 0.8 mm at the other end, in order to supply the necessary taper for demoulding.
- the piece was moulded without problems on the single-cavity mould.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Vascular Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Epidemiology (AREA)
- Biomedical Technology (AREA)
- Otolaryngology (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Biophysics (AREA)
- Materials Engineering (AREA)
- Psychology (AREA)
- Biological Depolymerization Polymers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Wrappers (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Materials For Medical Uses (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITMI942616 | 1994-12-23 | ||
| ITMI942616A IT1271316B (it) | 1994-12-23 | 1994-12-23 | Bastoncini cotonati in materiale plastico |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0722705A2 EP0722705A2 (en) | 1996-07-24 |
| EP0722705A3 EP0722705A3 (en) | 1997-06-04 |
| EP0722705B1 true EP0722705B1 (en) | 2000-12-06 |
Family
ID=11370057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95116392A Expired - Lifetime EP0722705B1 (en) | 1994-12-23 | 1995-10-18 | Cotton buds sticks of plastic material |
Country Status (25)
| Country | Link |
|---|---|
| US (1) | US5902262A (xx) |
| EP (1) | EP0722705B1 (xx) |
| JP (1) | JPH08215246A (xx) |
| KR (1) | KR100389456B1 (xx) |
| CN (1) | CN1105580C (xx) |
| AR (1) | AR000092A1 (xx) |
| AT (1) | ATE197888T1 (xx) |
| AU (1) | AU710849B2 (xx) |
| CA (1) | CA2160933C (xx) |
| CZ (1) | CZ288736B6 (xx) |
| DE (1) | DE69519560T2 (xx) |
| DK (1) | DK0722705T3 (xx) |
| ES (1) | ES2153871T3 (xx) |
| FI (1) | FI115822B (xx) |
| GR (1) | GR3035421T3 (xx) |
| HU (1) | HU219443B (xx) |
| IL (1) | IL115718A (xx) |
| IT (1) | IT1271316B (xx) |
| NO (1) | NO954162L (xx) |
| NZ (1) | NZ280312A (xx) |
| PL (1) | PL181508B1 (xx) |
| PT (1) | PT722705E (xx) |
| SK (1) | SK281943B6 (xx) |
| TW (1) | TW458786B (xx) |
| ZA (1) | ZA9510562B (xx) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020056868A (ko) * | 2002-06-17 | 2002-07-10 | 박동경 | 플라스틱 대체물의 제조방법 |
| NZ554681A (en) * | 2004-10-05 | 2010-05-28 | Plantic Technologies Ltd | Mouldable biodegradable polymer |
| CN100338132C (zh) * | 2005-02-28 | 2007-09-19 | 成都新柯力化工科技有限公司 | 全生物分解组合物及其制备方法和用途 |
| CN104945683A (zh) * | 2006-04-18 | 2015-09-30 | 普朗蒂克科技有限公司 | 聚合物膜 |
| CN101506291B (zh) * | 2006-08-04 | 2013-12-04 | 普朗蒂克科技有限公司 | 成型性的生物降解性聚合物 |
| TWI352717B (en) | 2007-12-11 | 2011-11-21 | Ind Tech Res Inst | A tenacity adjuster, a biodegradable material comp |
| EP2301595B1 (en) * | 2009-09-23 | 2014-01-22 | Dentsply IH AB | Flushable catheter and method for producing such a catheter |
| US8551031B2 (en) | 2011-05-03 | 2013-10-08 | Colson Edme | Swab applicator and methods of use |
| CH705159A2 (de) | 2011-06-24 | 2012-12-31 | Roweg Holding Ag | Wattestäbchen. |
| BR112015007784A2 (pt) * | 2012-10-12 | 2017-07-04 | Council Scient Ind Res | materiais compósitos hidrofóbicos biodegradáveis e processo para a preparação dos mesmos |
| CH707206A2 (de) * | 2012-11-13 | 2014-05-15 | Roweg Holding Ag C O Guy Petignat | Wattestäbchen. |
| DK3065793T3 (da) * | 2013-11-08 | 2021-05-17 | Hollister Inc | Oleofile smurte katetre |
| US9339580B2 (en) | 2013-11-27 | 2016-05-17 | Kimberly-Clark Worldwide, Inc. | Flushable tampon applicator |
| US9320656B2 (en) | 2013-11-27 | 2016-04-26 | Kimberly-Clark Worldwide, Inc. | Water-dispersible thermoplastic injection molded composition |
| US9456931B2 (en) | 2013-11-27 | 2016-10-04 | Kimberly-Clark Worldwide, Inc. | Thermoplastic and water-dispersible injection moldable materials and articles |
| CA2933518C (en) * | 2013-12-12 | 2020-12-08 | Hollister Incorporated | Flushable catheters |
| WO2020259905A1 (en) * | 2019-06-28 | 2020-12-30 | Philip Morris Products S.A. | Pack comprising a cleaning tool for an aerosol-generating device |
| FR3117332B1 (fr) * | 2020-12-14 | 2023-02-24 | Besson Aurelie | Dispositif de prélèvement ou de nettoyage |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE445683C (de) * | 1926-01-30 | 1927-06-13 | Grete Angersbach Geb Wolf | Ohrenreiniger mit Wattebausch |
| GB301572A (en) * | 1927-09-09 | 1928-12-06 | Johnson & Johnson | Improvements in or relating to swabs and swab holders for medical purposes |
| DE827697C (de) * | 1950-03-03 | 1952-01-14 | Karl Heinz Malz | Wattetupfer |
| US3179108A (en) * | 1963-02-15 | 1965-04-20 | Johnson & Johnson | Applicator |
| US3954104A (en) * | 1974-11-27 | 1976-05-04 | Personal Products Company | Water-dispersible, biodegradable compositions and containers and the like made therefrom |
| FR2579098B1 (fr) * | 1985-03-20 | 1992-02-28 | Tran Dinh Can | Perfectionnements a la fabrication des cotons-tiges et a leur procede de fabrication |
| US5044383A (en) * | 1986-05-15 | 1991-09-03 | Gerald Alessio | Disposable manicure device |
| US4820259A (en) * | 1987-06-01 | 1989-04-11 | Stevens Robert B | External ear cleaning device |
| CA2030716C (en) * | 1989-12-27 | 1996-07-02 | Robert L. Billmers | Water disposable tampon applicators and biodegradable compositions for use therein |
| HU216971B (hu) | 1991-05-03 | 1999-10-28 | Novamont S.P.A. | Keményítő- és hőrelágyulóműanyag-alapú, biológiailag lebomló polimerkompozíciók |
| DE4335361C1 (de) * | 1993-10-16 | 1994-10-13 | Eberhard Hottenroth | Verfahren und Anlage zum Aufarbeiten von gebrauchten Wattestäbchen |
-
1994
- 1994-12-23 IT ITMI942616A patent/IT1271316B/it active IP Right Grant
-
1995
- 1995-10-18 AT AT95116392T patent/ATE197888T1/de not_active IP Right Cessation
- 1995-10-18 DK DK95116392T patent/DK0722705T3/da active
- 1995-10-18 ES ES95116392T patent/ES2153871T3/es not_active Expired - Lifetime
- 1995-10-18 EP EP95116392A patent/EP0722705B1/en not_active Expired - Lifetime
- 1995-10-18 DE DE69519560T patent/DE69519560T2/de not_active Expired - Fee Related
- 1995-10-18 PT PT95116392T patent/PT722705E/pt unknown
- 1995-10-18 NO NO954162A patent/NO954162L/no not_active Application Discontinuation
- 1995-10-19 HU HU9503014A patent/HU219443B/hu not_active IP Right Cessation
- 1995-10-19 CZ CZ19952735A patent/CZ288736B6/cs not_active IP Right Cessation
- 1995-10-19 CA CA002160933A patent/CA2160933C/en not_active Expired - Fee Related
- 1995-10-21 TW TW084111161A patent/TW458786B/zh not_active IP Right Cessation
- 1995-10-23 IL IL11571895A patent/IL115718A/xx not_active IP Right Cessation
- 1995-10-24 NZ NZ280312A patent/NZ280312A/en unknown
- 1995-10-24 AU AU34418/95A patent/AU710849B2/en not_active Ceased
- 1995-10-25 SK SK1327-95A patent/SK281943B6/sk unknown
- 1995-10-30 PL PL95311184A patent/PL181508B1/pl unknown
- 1995-11-06 US US08/554,560 patent/US5902262A/en not_active Expired - Fee Related
- 1995-11-08 AR AR33415395A patent/AR000092A1/es unknown
- 1995-11-11 KR KR1019950040887A patent/KR100389456B1/ko not_active IP Right Cessation
- 1995-11-23 CN CN95121551A patent/CN1105580C/zh not_active Expired - Fee Related
- 1995-11-24 JP JP7306165A patent/JPH08215246A/ja active Pending
- 1995-12-12 ZA ZA9510562A patent/ZA9510562B/xx unknown
- 1995-12-18 FI FI956085A patent/FI115822B/fi active IP Right Grant
-
2001
- 2001-02-14 GR GR20010400252T patent/GR3035421T3/el not_active IP Right Cessation
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